Heavy, I don't necessarily think you need her approval if it doesn't require any commitment during her time with the kids. That said, I probably would give her a heads up because it's related to the kids. Would you want to know if roles were reversed?
Me: 30 H: 35 M: 5 years S2 Signs of MLC started Feb 2014 BD - PA July 2014 Piecing/reconciling late July 2014